package com.examples.constant;

/**
 * the actions for the activities for the trade.
 */
public interface Activity {
    /**
     * new subscribe for an instance or a resource
     */
    String NEW = "newInstance";

    /**
     * query the instance information
     */
    String QUERY = "queryInstance";

    /**
     * renew the instance
     */
    String REFRESH = "refreshInstance";

    /**
     * freeze or unfreeze the resource when the subscriber is overdue.
     */
    String UPDATE = "updateInstanceStatus";

    /**
     * unsubscribe to release the resource
     */
    String RELEASE = "releaseInstance";

    /**
     * upgrade the resource spec
     */
    String UPGRADE = "upgradeInstance";
}
